Device for seat belts

Abstract

A device for damping the belt tension which occurs in a seat belt ( 16 ) in the event of a momentary stress of great force. In order for momentary stresses of great force on the seat belt ( 16 ) to be able to be absorbed without injury being caused, the device has at least two reels ( 6, 14 ), rollers or the like which deflect the seat belt ( 16 ) from its straight-line extent and at least one ( 14 ) of which can yield elastically in the transverse direction of the extent when a preset maximum force is exceeded.

I claim:  
     
       1. A device for damping belt tension which occurs in a seat belt ( 16 ) in event of a momentary stress of great force, comprising deflection members comprising first reels ( 6 ) and an other reel ( 14 ) which deflect the seat belt ( 16 ) from a straight-line extent and wherein said other reel is interposed in a straight-line relationship between the first reels and which other reel ( 14 ) is yieldable elastically transversely with respect to said first reels to reposition the deflected seat belt toward the straight line extent. 
     
     
       2. The device as claimed in claim  1 , wherein the seat belt ( 16 ) is guided in a wavy manner through said first and said other reels ( 6 , 14 ). 
     
     
       3. The device as claimed in claim  1 , further comprising a pretensioned elastic cushion ( 10 ), and wherein said other reel ( 14 ) is supported by said elastic cushion ( 10 ). 
     
     
       4. The device as claimed in claim  1 , further comprising a U-shaped housing ( 2 ) made of bent steel plate and which has screw-on tabs ( 7 ). 
     
     
       5. The device as claimed in claim  3 , further comprising a U-shaped housing ( 2 ) wherein the elastic cushion ( 10 ) is seated in a U-space ( 9 ) of the housing ( 2 ) and is covered by a covering plate, ( 11 ) wherein said covering plate carries said other reel ( 14 ). 
     
     
       6. The device as claimed in claim  5 , further comprising a housing having U-limbs and wherein the covering plate ( 11 ) is held in a pretensioned position by holding tabs ( 15 ) bent off from the U-limbs ( 4 ). 
     
     
       7. The device as claimed in claim  4 , wherein axes of the reels ( 6 ,  14 ) lie in a plane parallel to a U-web ( 3 ) of the U-shaped housing ( 2 ). 
     
     
       8. The device as claimed in claim  1 , wherein the device has a U-web plate ( 3 ) supporting said reels ( 6 ,  14 ) and formed with screw-on tabs ( 7 ) for attaching the device to a motor vehicle body between a belt retractor device ( 19 ) and an outlet opening approximately at shoulder height of an occupant of the vehicle. 
     
     
       9. The device as claimed in claim  5 , wherein the elastic cushion is made of foam. 
     
     
       10. A device for damping tension occurring in a seat belt ( 18 ) subjected to a brief powerful load wherein said device comprises two fixed reels ( 6 ) and a movable central reel ( 14 ) which lies in a straight-line between the two fixed reels and which reels deflect the seat belt from its straight-line extent and said central reel is yieldable elastically in a transverse direction with respect to said fixed reels when a preset maximum force is exceeded by the belt to change the deflection of the seat belt and thereby dampen tension of the seat belt. 
     
     
       11. A device for damping belt tension which occurs in a seat belt ( 16 ) in event of a momentary stress of great force, comprising deflection members ( 6 )and a central movable deflection member ( 14 ) interposed in a straight-line relationship between two of said deflection members which deflect said seat belt from a straight-line extent and wherein said device further comprises a pretensioned elastic cushion ( 10 ) supporting the central deflection member which is yieldable elastically transversely to reposition said deflected seat belt toward the straight line extent. 
     
     
       12. The device as claimed in claim  11 , further comprising a U-shaped housing ( 2 ) wherein said elastic cushion is seated in a U-space ( 9 ) of said housing and is covered by a covering plate ( 11 ) wherein said covering plate carries said central deflecting member. 
     
     
       13. The device as claimed in claim  12 , wherein said housing has U-limbs ( 4 ) and wherein said covering plate is held in a pretensioned position by holding tabs ( 15 ) bent off from said U-limbs ( 4 ). 
     
     
       14. The device as claimed in claim  12 , wherein said elastic cushion is made of foam.